Seasoning a waffle iron

I got an old Griswold waffle iron from my Mother in law. I have it all cleaned up and ready for seasoning. I have read a few threads that waffle irons need to be seasoned real well or you can't get them out. Do I need to do anything differently then for a skillet? Like a second seasoning right after the first?
Here are a couple of pictures of the pieces ready for seasoning.

Here are a couple of pictures of the pieces ready for seasoning.

